Is 8397 divisible by 9

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.